Jacksonville Beach, Florida has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 17.1 °C (low) to 25 °C (high). Annual precipitation averages 1327.9 Millimeters. Jacksonville Beach is located in USDA Plant Hardiness Zone 9b.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.1 °C | 17.4 °C | 84.58 mm |
| February | 9.7 °C | 18.7 °C | 73.91 mm |
| March | 12.6 °C | 21.4 °C | 85.85 mm |
| April | 16.3 °C | 24.6 °C | 71.37 mm |
| May | 20.3 °C | 27.7 °C | 76.45 mm |
| June | 23.2 °C | 30.4 °C | 176.53 mm |
| July | 24.2 °C | 31.7 °C | 125.98 mm |
| August | 24.3 °C | 31.3 °C | 171.96 mm |
| September | 23.4 °C | 29.6 °C | 189.74 mm |
| October | 19.4 °C | 26.2 °C | 128.27 mm |
| November | 13.9 °C | 22.2 °C | 66.8 mm |
| December | 10.1 °C | 18.8 °C | 76.45 mm |
| Annual | 17.1 °C | 25 °C | 1327.89 mm |
| Average First Frost Date | Frost Rare |
| Average Last Frost Date | |
| Average Days With Frost | Frost Rare |
| Plant Hardiness Zone | Zone 9b : -3.9°C to -1.1°C |
| Plant Hardiness Zone - 2012 | Zone 9a : -6.7°C to -3.9°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |